Home / 776,899,458.90-1,072,122,404.85-442,372,253.22

Finding the Fourth Proportional to 776,899,458.90, 1,072,122,404.85 and 442,372,253.22

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Solution

The fourth proportional to 776,899,458.90, 1,072,122,404.85 and 442,372,253.22 is: 610,474,365.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,899,458.90 : 1,072,122,404.85 = 442,372,253.22 : x
  2. Step 2: Convert to fraction form
    776,899,458.90/1,072,122,404.85 = 442,372,253.22/x
  3. Step 3: Cross multiply
    776,899,458.90x = 1,072,122,404.85 × 442,372,253.22
  4. Step 4: Simplify right side
    776,899,458.90x = 474,277,203,961,139,584
  5. Step 5: Solve for x
    x = 474,277,203,961,139,584/776,899,458.90
  6. Step 6: Final answer
    x = 610,474,365.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.